Introduction
The NI-9881 C Series CANopen Interface Module is an industrial communication module developed by National Instruments (NI) for CompactRIO and NI RIO-based embedded control systems.
Designed for CANopen network applications, the NI-9881 enables real-time communication between CompactRIO controllers and CANopen devices such as industrial drives, sensors, actuators, motor controllers, and automation equipment.
By integrating CANopen communication directly into the CompactRIO platform, engineers can build reliable embedded control and industrial automation systems with deterministic timing, flexible programming, and seamless integration with LabVIEW FPGA and LabVIEW Real-Time environments.
Key Features of NI-9881
CANopen Communication Interface
The NI-9881 provides a dedicated CANopen interface for industrial communication networks based on the CAN bus standard.
- Supports CANopen protocol communication
- Compatible with industrial CANopen devices
- Provides deterministic embedded communication
- Designed for machine and automation applications
- Suitable for distributed control systems
The module allows CompactRIO controllers to communicate directly with CANopen-compatible devices without requiring additional external gateways.
C Series Module Integration
The NI-9881 uses the NI C Series modular architecture and can be installed into CompactRIO systems for customized industrial solutions.
- CompactRIO compatible
- Modular industrial I/O architecture
- Easy integration with existing NI RIO platforms
- Supports scalable embedded systems
Real-Time Industrial Communication
The NI-9881 is designed for applications requiring reliable and deterministic communication between multiple industrial devices.
Benefits include:
- Low-latency CANopen communication
- Reliable data exchange between controllers and devices
- Real-time monitoring capability
- Improved system synchronization
Applications of NI-9881
Industrial Automation Systems
The NI-9881 is widely used in industrial automation applications where CANopen devices are commonly deployed.
Typical applications include:
- Machine automation
- Industrial equipment control
- Motion control systems
- Factory automation networks
- Distributed I/O systems
Motor and Motion Control
CANopen is widely used in motion control applications, and the NI-9881 provides communication between CompactRIO controllers and intelligent motion devices.
- Servo drive communication
- Motor controller integration
- Position and speed monitoring
- Industrial actuator control
Embedded Control Applications
The NI-9881 enables engineers to develop customized embedded systems using CompactRIO hardware.
- Remote equipment control
- Real-time machine monitoring
- Intelligent automation systems
- Custom industrial controllers
Automotive and Transportation Systems
CANopen communication is commonly used in transportation and specialized vehicle systems.
Applications include:
- Vehicle control networks
- Mobile machinery
- Special-purpose vehicles
- Embedded communication systems
Software Support and Integration
The NI-9881 works with NI software tools to simplify industrial communication development.
- LabVIEW
- LabVIEW Real-Time
- LabVIEW FPGA
- NI-RIO driver
- NI CompactRIO platform
Using LabVIEW and NI-RIO technology, engineers can develop custom CANopen applications, configure communication logic, and implement real-time control algorithms.
Comparison with Similar NI Communication Modules
| Model | Main Difference | Best Application |
|---|---|---|
| NI-9881 | CANopen C Series interface | Industrial CANopen communication |
| NI-9862 | CAN interface module | Standard CAN communication |
| NI-9853 | Dual-port CAN module | Multi-channel CAN networks |
| NI-9866 | LIN interface module | Automotive LIN communication |
Compared with standard CAN modules, the NI-9881 is specifically designed for CANopen networks and industrial automation applications. Compared with general communication interfaces, it provides tighter integration with CompactRIO real-time control systems.
Why Choose NI-9881
- Dedicated CANopen communication capability
- CompactRIO and C Series compatibility
- Real-time industrial networking
- Reliable embedded communication
- Integration with LabVIEW Real-Time and FPGA
- Suitable for automation and motion control
- Flexible industrial system development
Conclusion
The NI-9881 CANopen C Series Interface Module is a reliable communication solution for CompactRIO-based industrial automation and embedded control systems.
With CANopen protocol support, C Series modular design, real-time communication capability, and NI software integration, the NI-9881 is an excellent choice for machine automation, motion control, industrial networks, and distributed embedded control applications.
